Malicious PDF — malware analysis report

Static analysis result for SHA-256 848e85be382878ab…

MALICIOUS

PDF

39.9 KB Created: 2020-08-25 02:32:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46a47396bb35cd04c29482a6bb0f485e SHA-1: d762e5aa27a36a04d66c36f2e49cbe752671e36c SHA-256: 848e85be382878abf55b9db18358d0e1085f3f0c96c8c7ac1bf9624d75b112f9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains multiple embedded links, with a primary redirector URL identified as https://ttraff.com/pify?keyword=comprehensive+lesson+plan+template. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to disguise malicious activity. The presence of numerous external PDF links, many pointing to benign Shopify domains but some to unknown domains, indicates a link farm strategy, likely for SEO manipulation or to host further malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=comprehensive+lesson+plan+template In PDF document text
    • http://vamumiga.caitlingriffiths.com/uploads/1/3/0/9/130969300/tazulajopupejevidelu.pdfIn PDF document text
    • http://files.finksdeli.org/uploads/1/3/2/7/132741222/5b0259.pdfIn PDF document text
    • http://guwom.teachingconnections.net/uploads/1/3/0/7/130775565/890032644b3e291.pdfIn PDF document text
    • http://files.earthenhairandbody.com.au/uploads/1/3/1/3/131379057/razopagejoboted_pibirajoxikex_xodos.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7241/4106/files/63240926366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9894/8255/files/10621723999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9616/9886/files/elementary_linear_algebra_larson_8th.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0636/9697/files/black_screen_wallpaper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0821/9547/files/basic_counseling_techniques.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2562/9335/files/because_you_loved_me_piano_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7287/files/vawulibevolatumifexan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/45913559903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6372/1637/files/dabowime.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8734/7360/files/jurnal_akuntansi_perusahaan_dagang.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5969/8077/files/97256912832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5624/1557/files/vifodivaxekezag.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5850 5024 bytes
SHA-256: 8b71268e73dee8e1da0319a1ad88b0a0c1776334a16a6583f3d7a6b5cb7d6949
font_01_sfnt_off0000693a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693A 13356 bytes
SHA-256: ca081c4f522c2f41970167276789d772a66bd933229a532ca0a79e2c3ec9d60e

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